摘要
20 0 0年 4～ 7月 ,通过野外直接观察采样的方法 ,对准噶尔盆地东部波斑鸨炫耀栖息地进行了研究。结果表明 :条块状高灌丛随机散布在视野开阔、地势平坦的小半灌木群落中是波斑鸨炫耀栖息地的景观特征 ;影响波斑鸨炫耀栖息地选择的主要环境因子是植物种数、植被盖度、密度和距高灌丛距离 ;炫耀地内的植物种数、植被盖度、植被密度和草本植物种数显著低于对照样方内的相应成分 ;绝大多数炫耀地位于低矮稀疏的半灌木群落中 ,同时又总是靠近条块状高灌丛。这种镶嵌景观的炫耀地植物群落结构为波斑鸨的生存、炫耀提供了理想场所。
Display sites selection by Houbara bustard in eastern Jungar Basin,Xinjiang were studied from April to July 2000.Plant species richness,vegetative density,vegetative cover and distance to the bushy patches are the most important factors for houbaras to select their display sites.They display in the habitats with relatively low plant species richness,vegetative density and vegetative cover.However,most of display sites are close to bushy patches.Those vegetation structures of display sites that have short sub shrubs scattered with densely bushy patches provide an ideal habitat for houbara surviving and breeding.
基金
中国科学院"九五"重大项目 (KZ95 2 -J1-114 )
中国阿联酋合作项目资助
关键词
波斑鸨
炫耀
栖息地
结构
功能
新疆
荒漠地区
鸟类
Houbara bustard
Chlamydotis undulata
Display
Habitat
Structure and function
